ECOLOGICAL STATE OF URBAN ECOSYSTEMS (ON THE EXAMPLE OF LAWNS IN UZHHOROD, UKRAINE)

Abstract

The article deals with issues of vehicular pollution, and substantiates the topicality of the problem. A complex study of the state of the microbiota and contents of heavy metals in the soils of urbanized ecosystems is conducted, and the air pollution is analyzed by chemical and microbiological indicators. The soils of the lawns (grass-plots) located in the proximity of heavy traffic are shown to be characterized by a heightened content of Pb and Cu as compared with the maximum permissible concentrations (MPC) for these metals, and increased concentrations of all heavy metals reviewed as compared with their background figures. The soil microbiocoenosis is established to have undergone a reconstruction characterized by an increased number of oligonitrophils and ammonifiers, and a decreased content of Azotobacter and actinomycetes (ray fungi).